diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-11-26 09:23:57 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-11-26 09:23:57 +1100 |
| commit | 2a859ab07b6ab66f4134c4fffc341398bd3d328c (patch) | |
| tree | c5e7eaf3bffbc18feb326940e39794328d98dc07 /drivers/gpu/drm/i915/intel_dp.c | |
| parent | cedddd812a79a4fda3885a15711aee3de78c4a24 (diff) | |
| parent | e716e014384688d1a50d1aa5213ee74748c6d4e0 (diff) | |
| download | op-kernel-dev-2a859ab07b6ab66f4134c4fffc341398bd3d328c.zip op-kernel-dev-2a859ab07b6ab66f4134c4fffc341398bd3d328c.tar.gz | |
Merge branch 'merge' into next
Merge my own merge branch to get various fixes from there
and upstream, especially the hvc console tty refcouting fixes
which which testing is quite a bit harder...
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 1b727a5..368ed8e 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1797,7 +1797,8 @@ intel_dp_start_link_train(struct intel_dp *intel_dp) if ((intel_dp->train_set[i] & DP_TRAIN_MAX_SWING_REACHED) == 0) break; if (i == intel_dp->lane_count && voltage_tries == 5) { - if (++loop_tries == 5) { + ++loop_tries; + if (loop_tries == 5) { DRM_DEBUG_KMS("too many full retries, give up\n"); break; } @@ -1807,11 +1808,15 @@ intel_dp_start_link_train(struct intel_dp *intel_dp) } /* Check to see if we've tried the same voltage 5 times */ - if ((intel_dp->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK) != voltage) { - voltage = intel_dp->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK; - voltage_tries = 0; - } else + if ((intel_dp->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK) == voltage) { ++voltage_tries; + if (voltage_tries == 5) { + DRM_DEBUG_KMS("too many voltage retries, give up\n"); + break; + } + } else + voltage_tries = 0; + voltage = intel_dp->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK; /* Compute new intel_dp->train_set as requested by target */ intel_get_adjust_train(intel_dp, link_status); |
